Construction method using self-suspending water fracturing propping agent

A technology for water fracturing and construction methods, applied in chemical instruments and methods, mining fluids, earthwork drilling, etc., can solve the problems of long cycle, inconvenient construction, high cost, etc., to reduce damage, save costs, and improve work efficiency. Effect

Active Publication Date: 2019-01-29
CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a construction method using self-suspension clear water fracturing proppant to solve the problems of inconvenient construction, long period and high cost of existing construction methods

Method used

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  • Construction method using self-suspending water fracturing propping agent
  • Construction method using self-suspending water fracturing propping agent
  • Construction method using self-suspending water fracturing propping agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example 1

[0049] The construction method using self-suspending clean water fracturing proppant includes the following steps:

[0050] (1) Use a high-pressure pump truck to pump natural water into the downhole reservoir at a displacement of 2 cubic meters per minute for fracturing to form initial fractures;

[0051] (2) Continuously add clean water as the sand-carrying fluid in the sand mixer, and at the same time add the self-suspending clean water fracturing proppant at a displacement of 2.2 cubic per minute to make a sand-carrying fracturing fluid, and the sand mixing time is 10s; The volume ratio of the clean water fracturing proppant to the sand-water volume of the sand-carrying liquid is 40%, and the relationship between the sand mixing speed Y and the sand-water volume ratio X is controlled at Y = 118.35X 0.1918 ;

[0052] (3) After the initial fractures are formed, a high-pressure pump truck is used to continuously pump the sand-carrying fracturing fluid into the initial

Example Embodiment

[0061] Example 2

[0062] The construction method using self-suspending clean water fracturing proppant includes the following steps:

[0063] (1) Use a high-pressure pump truck to pump natural water into the downhole reservoir at a displacement of 2.5 cubic meters per minute for fracturing to form initial fractures;

[0064] (2) Continuously add clean water as the sand-carrying fluid in the sand mixer, and at the same time add self-suspending clean-water fracturing proppant at a displacement of 2.6 cubic per minute to make a sand-carrying fracturing fluid with a mixing time of 12s; self-suspension The volume ratio of the clean water fracturing proppant to the sand-water volume of the sand-carrying fluid is 45%, and the relationship between the sand mixing speed Y and the sand-water volume ratio X is controlled at Y = 118.35X 0.1918 ;

[0065] (3) After the initial fractures are formed, a high-pressure pump truck is used to continuously pump the sand-carrying fracturing fluid into the in

Example Embodiment

[0074] Example 3

[0075] The construction method using self-suspending clean water fracturing proppant includes the following steps:

[0076] (1) Use a high-pressure pump truck to pump natural water into the downhole reservoir with a displacement of 1.5 cubic meters per minute for fracturing to form initial fractures;

[0077] (2) Continuously add river water as a sand-carrying fluid in the sand mixer, and at the same time add a self-suspending clean water fracturing proppant at a displacement of 3 cubic meters per minute to make a sand-carrying fracturing fluid with a sand mixing time of 15s; self-suspension The volume ratio of the clean water fracturing proppant to the sand-water volume of the sand-carrying fluid is 50%, and the relationship between the sand mixing speed Y and the sand-water volume ratio X is controlled at Y = 118.35X 0.1918 ;

[0078] (3) After the initial fractures are formed, a high-pressure pump truck is used to continuously pump the sand-carrying fracturing fluid

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Abstract

The invention belongs to the technical field of fluid ore mining, and particularly discloses a construction method using a self-suspending clean water fracturing propping agent. The construction method comprises the following steps that (1), prepad fluid is pumped into an underground reservoir for fracturing to form an initial crack; (2), sand-carrying liquid is continuously added into a sand mixer, the self-suspending water fracturing propping agent is added to be stirred and mixed to form sand-carrying fracturing fluid, and sand mixing time is 7-15s; the sand water volume ratio of the self-suspending water fracturing propping agent to the sand carrying liquid is 5-55%, and the relationship between the sand mixing speed Y and the sand water volume ratio X is controlled at Y=118.35*0.1918;and (3) after an initial crack is formed, the sand-carrying fracturing fluid is continuously pumped into the initial crack, and the initial crack is extended to form a geological crack supported by the self-suspending water fracturing propping agent. According to the technical scheme, the construction method can effectively solve the problems of inconvenient construction, long cycle and high costcaused by an existing construction method.

Description

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Claims

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Application Information

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Owner CHONGQING CHANGJIANG RIVER MOLDING MATERIAL GRP
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